Self-assembly in evaporated polymer solutions: Influence of the solution concentration

Edward Bormashenko; Roman Pogreb; Albina Musin; Oleg Stanevsky; Yelena Bormashenko; Gene Whyman; Oleg Gendelman; Zahava Barkay

doi:10.1016/j.jcis.2005.11.025

Self-assembly in evaporated polymer solutions: Influence of the solution concentration

Edward Bormashenko, Roman Pogreb, Albina Musin, Oleg Stanevsky, Yelena Bormashenko, Gene Whyman, Oleg Gendelman, Zahava Barkay

Research output: Contribution to journal › Article › peer-review

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Abstract

Amorphous polymers were dissolved in chlorinated organic solvents and deposited on thin horizontal substrates. The solutions with various concentrations of polymers were deposited and evaporated under ambient conditions in a slow air current. Self-assembled oriented mesoscopically scaled patterns were observed. The patterns were studied with optical and atomic force microscopy. The concentration of the solution exerts a decisive influence on the mesoscopic cell characteristic dimension. Cell dimensions grow linearly with the polymer solution concentration for all kinds of tested polymers, chlorinated solvents and substrates. The dependence could be explained by a physical mechanism, based on the mass transport instability occurring under the intensive evaporation of the solvent. In situ FTIR study of the process was performed first. It was established with FTIR spectroscopy that film porosity is not due to water droplet condensation under evaporation.

Original language	English
Pages (from-to)	534-540
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	297
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2005.11.025
State	Published - 15 May 2006

Keywords

AFM microscopy
Concentration
Evaporation
FTIR spectroscopy
Mass transport instability
Mesoscopic
Patterning
Polymer solution
Pores
Self-assembly

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10.1016/j.jcis.2005.11.025

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title = "Self-assembly in evaporated polymer solutions: Influence of the solution concentration",

abstract = "Amorphous polymers were dissolved in chlorinated organic solvents and deposited on thin horizontal substrates. The solutions with various concentrations of polymers were deposited and evaporated under ambient conditions in a slow air current. Self-assembled oriented mesoscopically scaled patterns were observed. The patterns were studied with optical and atomic force microscopy. The concentration of the solution exerts a decisive influence on the mesoscopic cell characteristic dimension. Cell dimensions grow linearly with the polymer solution concentration for all kinds of tested polymers, chlorinated solvents and substrates. The dependence could be explained by a physical mechanism, based on the mass transport instability occurring under the intensive evaporation of the solvent. In situ FTIR study of the process was performed first. It was established with FTIR spectroscopy that film porosity is not due to water droplet condensation under evaporation.",

keywords = "AFM microscopy, Concentration, Evaporation, FTIR spectroscopy, Mass transport instability, Mesoscopic, Patterning, Polymer solution, Pores, Self-assembly",

author = "Edward Bormashenko and Roman Pogreb and Albina Musin and Oleg Stanevsky and Yelena Bormashenko and Gene Whyman and Oleg Gendelman and Zahava Barkay",

note = "Funding Information: The authors are grateful to Professor M. Zinigrad for his continuous support of our research activity. The authors are thankful to Professor A. Nepomnyashchy, Professor A. Voronel and Mr. A. Sheshnev for fruitful discussions. The work has been supported by the Israel Ministry of Absorption. O. Gendelman is grateful to the Taub and Shalom Foundations for their financial support.",

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doi = "10.1016/j.jcis.2005.11.025",

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T2 - Influence of the solution concentration

AU - Bormashenko, Edward

AU - Pogreb, Roman

AU - Musin, Albina

AU - Stanevsky, Oleg

AU - Bormashenko, Yelena

AU - Whyman, Gene

AU - Gendelman, Oleg

AU - Barkay, Zahava

N1 - Funding Information: The authors are grateful to Professor M. Zinigrad for his continuous support of our research activity. The authors are thankful to Professor A. Nepomnyashchy, Professor A. Voronel and Mr. A. Sheshnev for fruitful discussions. The work has been supported by the Israel Ministry of Absorption. O. Gendelman is grateful to the Taub and Shalom Foundations for their financial support.

PY - 2006/5/15

Y1 - 2006/5/15

N2 - Amorphous polymers were dissolved in chlorinated organic solvents and deposited on thin horizontal substrates. The solutions with various concentrations of polymers were deposited and evaporated under ambient conditions in a slow air current. Self-assembled oriented mesoscopically scaled patterns were observed. The patterns were studied with optical and atomic force microscopy. The concentration of the solution exerts a decisive influence on the mesoscopic cell characteristic dimension. Cell dimensions grow linearly with the polymer solution concentration for all kinds of tested polymers, chlorinated solvents and substrates. The dependence could be explained by a physical mechanism, based on the mass transport instability occurring under the intensive evaporation of the solvent. In situ FTIR study of the process was performed first. It was established with FTIR spectroscopy that film porosity is not due to water droplet condensation under evaporation.

AB - Amorphous polymers were dissolved in chlorinated organic solvents and deposited on thin horizontal substrates. The solutions with various concentrations of polymers were deposited and evaporated under ambient conditions in a slow air current. Self-assembled oriented mesoscopically scaled patterns were observed. The patterns were studied with optical and atomic force microscopy. The concentration of the solution exerts a decisive influence on the mesoscopic cell characteristic dimension. Cell dimensions grow linearly with the polymer solution concentration for all kinds of tested polymers, chlorinated solvents and substrates. The dependence could be explained by a physical mechanism, based on the mass transport instability occurring under the intensive evaporation of the solvent. In situ FTIR study of the process was performed first. It was established with FTIR spectroscopy that film porosity is not due to water droplet condensation under evaporation.

KW - AFM microscopy

KW - Concentration

KW - Evaporation

KW - FTIR spectroscopy

KW - Mass transport instability

KW - Mesoscopic

KW - Patterning

KW - Polymer solution

KW - Pores

KW - Self-assembly

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JO - Journal of Colloid and Interface Science

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ER -

Self-assembly in evaporated polymer solutions: Influence of the solution concentration

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